Wang Haige, Liu Xisheng, Dong Jie. APPROXIMATE SOLUTION OF STABLE FLUCTUATION PRESSURE OF NEWTONIAN FLUID IN ECCENTRIC ANNULAR[J]. Oil Drilling & Production Technology, 1996, 18(2): 18-21. DOI: 10.3969/j.issn.1000-7393.1996.02.004
Citation: Wang Haige, Liu Xisheng, Dong Jie. APPROXIMATE SOLUTION OF STABLE FLUCTUATION PRESSURE OF NEWTONIAN FLUID IN ECCENTRIC ANNULAR[J]. Oil Drilling & Production Technology, 1996, 18(2): 18-21. DOI: 10.3969/j.issn.1000-7393.1996.02.004
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APPROXIMATE SOLUTION OF STABLE FLUCTUATION PRESSURE OF NEWTONIAN FLUID IN ECCENTRIC ANNULAR

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  • The fluctuation pressure closely relates with geometric configuration of annular of we1l bore.On the basis of concentric annular fluctuation pressure model,approximate solution of eccentric annular was soluted.The experience model of eccentric annular has been established by using multiple regression analysis.Calculating results show that fluctuation pressure decrease with eccentricity between drill stem and well bore increase.
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